公开(公告)号：US20140117223A1

公开(公告)日：2014-05-01

申请号：US14122534

申请日：2012-05-25

Applicant: MSDETECTION CORP.

Inventor： William R. Stott ,  Gholamreza Javahery

IPC: H01J49/04

CPC classification number: H01J49/0459 ,  G01N1/22 ,  G01N1/24 ,  G01N2001/022 ,  G01N2001/024 ,  H01J49/00 ,  H01J49/02 ,  H01J49/04

Abstract: Methods and devices for detecting a target substance on a subject without contacting the subject are disclosed. At least one air jet blows analyte from a surface of the subject into an airflow, the airflow entraining the analyte. A desorption channel desorbs molecules from analyte in a portion of the airflow travelling through the desorption channel. An ionizer forms ions from vapour molecules in the portion of the airflow. At least one mass spectrometer analyzes the ions to detect the target substance. The flow travels without interruption from the subject to the at least one mass spectrometer. The desorption channel causes a sufficient quantity of molecules to desorb from the analyte to enable the at least one mass spectrometer to detect the target substance.

Abstract translation: 公开了用于在不接触受试者的情况下检测被检物体上的目标物质的方法和装置。 至少一个空气喷射器将被分析物从受试者的表面吹入气流，夹带分析物的气流。 解吸通道在通过解吸通道行进的气流的一部分中从分析物解吸分子。 电离器在气流的一部分形成来自蒸气分子的离子。 至少一个质谱仪分析离子以检测目标物质。 该流动不间断地从受试者移动到至少一个质谱仪。 解吸通道导致足够数量的分子从分析物解吸，使得至少一个质谱仪能够检测目标物质。